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selftests/bpf: Adding a namespace reset for tc_redirect

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This patch delete ns_src/ns_dst/ns_redir namespaces before recreating
them, making the test more robust.

Signed-off-by: Yucong Sun <sunyucong@gmail.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20211025223345.2136168-5-fallentree@fb.com
This commit is contained in:
Yucong Sun 2021-10-25 15:33:45 -07:00 committed by Andrii Nakryiko
parent 9e7240fb2d
commit e1ef62a4dd
1 changed files with 14 additions and 0 deletions
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14
tools/testing/selftests/bpf/prog_tests/tc_redirect.c
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@ -176,6 +176,18 @@ static int netns_setup_namespaces(const char *verb)
return 0;
}
static void netns_setup_namespaces_nofail(const char *verb)
{
const char * const *ns = namespaces;
char cmd[128];
while (*ns) {
snprintf(cmd, sizeof(cmd), "ip netns %s %s > /dev/null 2>&1", verb, *ns);
system(cmd);
ns++;
}
}
struct netns_setup_result {
int ifindex_veth_src_fwd;
int ifindex_veth_dst_fwd;
@ -762,6 +774,8 @@ static void test_tc_redirect_peer_l3(struct netns_setup_result *setup_result)
static void *test_tc_redirect_run_tests(void *arg)
{
netns_setup_namespaces_nofail("delete");
RUN_TEST(tc_redirect_peer);
RUN_TEST(tc_redirect_peer_l3);
RUN_TEST(tc_redirect_neigh);